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    element表格在前端对全部数据进行排序 |
    
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        <h1 id="element表格在前端对全部数据进行排序">
            
            element表格在前端对全部数据进行排序
            
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        <a class="category-link" href="/blog/categories/前端/">前端</a> <a class="category-link" href="/blog/categories/前端/vue/">vue</a>
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            2019/11/24</span>
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        <h3 id="1-对全部数据进行排序，需要对el-table绑定sort-change监听"><a href="#1-对全部数据进行排序，需要对el-table绑定sort-change监听" class="headerlink" title="1.对全部数据进行排序，需要对el-table绑定sort-change监听"></a>1.对全部数据进行排序，需要对el-table绑定sort-change监听</h3><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">el-table</span> <span class="attr">:data</span>=<span class="string">'tableData'</span> @<span class="attr">sort-change</span>=<span class="string">'sort_change'</span>&gt;</span></span><br></pre></td></tr></table></figure>

<p>sort-change绑定方法具有参数：column，这是一个对象：</p>
<figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">column: &#123; </span><br><span class="line">  prop: <span class="string">'xxxx'</span>, <span class="comment">// el-table-column中的prop</span></span><br><span class="line">  order: <span class="string">'xxxx'</span>, <span class="comment">// 'ascending' or 'descending'</span></span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line">sort_change (column)&#123;</span><br><span class="line">      <span class="built_in">console</span>.log(column.prop); <span class="comment">//当前列需要排序的数据</span></span><br><span class="line">      <span class="built_in">console</span>.log(column.order);<span class="comment">//排序规则：descending降序、ascending升序</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h3 id="2-列中设置属性sortable-”custom”"><a href="#2-列中设置属性sortable-”custom”" class="headerlink" title="2.列中设置属性sortable=”custom”"></a>2.列中设置属性sortable=”custom”</h3><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">el-table-column</span> <span class="attr">prop</span>=<span class="string">"time"</span> <span class="attr">sortable</span>=<span class="string">"custom"</span> <span class="attr">label</span>=<span class="string">"时间"</span>&gt;</span><span class="tag">&lt;/<span class="name">el-table-column</span>&gt;</span></span><br></pre></td></tr></table></figure>

<h3 id="3-js实现排序功能"><a href="#3-js实现排序功能" class="headerlink" title="3.js实现排序功能"></a>3.js实现排序功能</h3><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br></pre></td><td class="code"><pre><span class="line">&lt;script&gt;</span><br><span class="line"><span class="keyword">export</span> <span class="keyword">default</span> &#123;</span><br><span class="line">  data() &#123;</span><br><span class="line">    <span class="keyword">return</span> &#123;</span><br><span class="line">      tableData: [], <span class="comment">// 数据列表</span></span><br><span class="line">      currpage: <span class="number">1</span>, <span class="comment">//当前页码</span></span><br><span class="line">      proptype: <span class="string">""</span> <span class="comment">//存放column.prop的字符串值</span></span><br><span class="line">    &#125;;</span><br><span class="line">  &#125;,</span><br><span class="line">  methods: &#123;</span><br><span class="line">    <span class="comment">//排序功能</span></span><br><span class="line">    sort_change(column) &#123;</span><br><span class="line">      <span class="keyword">this</span>.currpage = <span class="number">1</span>; <span class="comment">// 排序后返回第一页</span></span><br><span class="line">      <span class="keyword">if</span> (column.prop === <span class="string">"time"</span>) &#123;</span><br><span class="line">        <span class="keyword">this</span>.proptype = column.prop; <span class="comment">// 将键名prop赋值给变量proptype</span></span><br><span class="line">        <span class="keyword">if</span> (column.order === <span class="string">"descending"</span>) &#123;</span><br><span class="line">          <span class="keyword">this</span>.tableData.sort(<span class="keyword">this</span>.my_desc_sort);</span><br><span class="line">        &#125; <span class="keyword">else</span> <span class="keyword">if</span> (column.order === <span class="string">"ascending"</span>) &#123;</span><br><span class="line">          <span class="keyword">this</span>.tableData.sort(<span class="keyword">this</span>.my_asc_sort);</span><br><span class="line">        &#125;</span><br><span class="line">      &#125; <span class="keyword">else</span> <span class="keyword">if</span> (column.prop === <span class="string">"id"</span>) &#123;</span><br><span class="line">        <span class="keyword">this</span>.proptype = column.prop;</span><br><span class="line">        <span class="comment">// ...</span></span><br><span class="line">      &#125;</span><br><span class="line">    &#125;,</span><br><span class="line">    <span class="comment">//若采用相同排序方法可简写：</span></span><br><span class="line">    sort_change2(column) &#123;</span><br><span class="line">      <span class="keyword">this</span>.currpage = <span class="number">1</span>; <span class="comment">// 排序后返回第一页</span></span><br><span class="line">      <span class="keyword">this</span>.proptype = column.prop; <span class="comment">// 将键名prop赋值给变量proptype</span></span><br><span class="line">      <span class="keyword">if</span> (column.order === <span class="string">"descending"</span>) &#123;</span><br><span class="line">        <span class="keyword">this</span>.tableData.sort(<span class="keyword">this</span>.my_desc_sort);</span><br><span class="line">      &#125; <span class="keyword">else</span> <span class="keyword">if</span> (column.order === <span class="string">"ascending"</span>) &#123;</span><br><span class="line">        <span class="keyword">this</span>.tableData.sort(<span class="keyword">this</span>.my_asc_sort);</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;,</span><br><span class="line">    <span class="comment">//排序方法</span></span><br><span class="line">    my_desc_sort(a, b) &#123;</span><br><span class="line">      <span class="keyword">return</span> b[<span class="keyword">this</span>.proptype] - a[<span class="keyword">this</span>.proptype]; <span class="comment">// a["time"] 等价于 a.time</span></span><br><span class="line">    &#125;,</span><br><span class="line">    my_asc_sort(a, b) &#123;</span><br><span class="line">      <span class="keyword">return</span> a[<span class="keyword">this</span>.proptype] - b[<span class="keyword">this</span>.proptype];</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;;</span><br><span class="line">&lt;<span class="regexp">/script&gt;</span></span><br></pre></td></tr></table></figure>
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        <ol class="toc"><li class="toc-item toc-level-3"><a class="toc-link" href="#1-对全部数据进行排序，需要对el-table绑定sort-change监听"><span class="toc-text">1.对全部数据进行排序，需要对el-table绑定sort-change监听</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#2-列中设置属性sortable-”custom”"><span class="toc-text">2.列中设置属性sortable=”custom”</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#3-js实现排序功能"><span class="toc-text">3.js实现排序功能</span></a></li></ol>
        
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